阅读说明：本技术 一种预制环形锻件铸钢坯的组合模具 (Combined die for prefabricating ring-shaped forge piece cast steel billet ) 是由 王犇 于 2019-11-28 设计创作，主要内容包括：本发明涉及机械铸造技术领域,且公开了一种预制环形锻件铸钢坯的组合模具,包括下模坯,下模坯的底部呈圆板形设置,下模坯的四周侧壁呈环形设置,下模坯的内部中部设有竖直设置的限位杆,限位杆的下端与下模坯的下内侧壁固定连接,限位杆的上端开设有螺纹槽,限位杆的干部中部活动套设有限位套筒,限位套筒的外圆周侧壁固定连接有多个均匀分布的连接杆,下模坯的内部还设有内环体。该预制环形锻件铸钢坯的组合模具,便于进行组装和更换,从而对不同内径的环形锻件的进行浇铸制造,节约成本,避免资源浪费,且便于进行拆分将浇铸的环形锻件取出,还便于对模具进行水冷快速冷却,节约环形锻件的浇铸制造时间,便于人们使用。(The invention relates to the technical field of mechanical casting, and discloses a combined die for prefabricating an annular forge piece cast steel billet, which comprises a lower die blank, wherein the bottom of the lower die blank is arranged in a circular plate shape, the peripheral side walls of the lower die blank are arranged in an annular shape, a vertically arranged limiting rod is arranged in the middle of the inner part of the lower die blank, the lower end of the limiting rod is fixedly connected with the lower inner side wall of the lower die blank, the upper end of the limiting rod is provided with a threaded groove, the middle part of a cadre part of the limiting rod is movably sleeved with a limiting sleeve, the outer peripheral side wall of the limiting sleeve is fixedly connected with a plurality of uniformly distributed connecting rods, and an. This assembling die of prefabricated annular forging cast steel blank is convenient for assemble and change to casting manufacturing to the annular forging of different internal diameters practices thrift the cost, avoids the wasting of resources, and is convenient for carry out the split and takes out the annular forging of casting, still is convenient for carry out water-cooling quick cooling to the mould, practices thrift the casting manufacturing time of annular forging, and the people of being convenient for use.)

1. The utility model provides a prefabricated annular forging cast steel billet's assembling die, includes lower die block (1), its characterized in that: the bottom of the lower die blank (1) is in a circular plate shape, the peripheral side walls of the lower die blank (1) are in an annular arrangement, a vertically arranged limiting rod (2) is arranged in the middle of the inner part of the lower die blank (1), the lower end of the limiting rod (2) is fixedly connected with the lower inner side wall of the lower die blank (1), a threaded groove is formed in the upper end of the limiting rod (2), a limiting sleeve (3) is movably sleeved in the middle of a dry part of the limiting rod (2), a plurality of uniformly distributed connecting rods (4) are fixedly connected with the outer peripheral side wall of the limiting sleeve (3), an inner ring body (5) is further arranged in the lower die blank (1), the inner ring body (5) is sleeved outside the limiting sleeve (3), one ends, far away from the limiting sleeve (3), of the connecting rods (4) are fixedly connected with the inner peripheral side wall of the inner ring body (5), and the lower end of the inner ring body (5) is abutted against the lower inner side wall of the lower die blank (1, the utility model discloses a spacing pole, including gag lever post (2), the pole wall top activity cover of gag lever post (2) is equipped with compression sleeve (6), the upper end of compression sleeve (6) sets up for sealing, and the upper end of compression sleeve (6) sets up the through-hole that corresponds with the thread groove position, the inside swing joint of through-hole has clamp bolt (7), the lower extreme and the thread groove threaded connection of clamp bolt (7).

2. The combined die of the prefabricated ring-shaped forging cast steel blank as claimed in claim 1, wherein: a plurality of connecting rod (4) are four settings, four connecting rod (4) are the annular distribution setting around spacing sleeve (3).

3. The combined die of the prefabricated ring-shaped forging cast steel blank as claimed in claim 1, wherein: the diameter of the inner circle side wall of the limiting sleeve (3) is in transition fit with the diameter of the rod wall of the limiting rod (2).

4. The combined die of the prefabricated ring-shaped forging cast steel blank as claimed in claim 1, wherein: the outer circle side wall of the inner ring body (5) and the inner circle side wall of the lower die blank (1) are both arranged smoothly.

5. The combined die of the prefabricated ring-shaped forging cast steel blank as claimed in claim 1, wherein: lower die blank (1)'s the inside first condenser tube (8) that is equipped with of lower lateral wall, the inside second condenser tube (9) that is equipped with of circumference lateral wall of lower die blank (1), wherein one end of first condenser tube (8) and wherein one end intercommunication setting of second condenser tube (9), the other end fixedly connected with inlet tube (10) of first condenser tube (8), inlet tube (10) extend to the outside setting of lower die blank (1), the other end fixedly connected with outlet pipe (11) of second condenser tube (9), the other end of outlet pipe (11) extends to the outside setting of lower die blank (1).

6. The combined die of the prefabricated ring-shaped forging cast steel blank as claimed in claim 5, wherein: the first cooling water pipe (8) is spirally arranged, and the second cooling water pipe (9) is spirally arranged.

7. The combined die of the prefabricated ring-shaped forging cast steel blank as claimed in claim 1, wherein: the left side and the right side of the upper end of the inner ring body (5) are fixedly connected with U-shaped pull rods (12).

Technical Field

The invention relates to the technical field of mechanical casting, in particular to a combined die for prefabricating an annular forging cast steel billet.

Background

At present, annular mechanical parts which have large bearing load and special technical requirements and have round or rectangular sections and large geometric dimension and weight are all manufactured by processing free forging forgings through working procedures such as machining and the like; firstly, heating hot-rolled square steel with the side length of 200-300 mm to the forging temperature, cutting the hot-rolled square steel by using a chisel or chopping, then heating the blank for the second time, upsetting cakes and punching, heating for the third time, reaming and forming; the forging can be formed when the section of the forging is rectangular, the forging can only be preformed when the section of the forging is circular, and the forging with the section not only circular, but also large annular size and heavy weight can be finish-forged by heating for four times to form the qualified forging. In the conventional forging processes, the metal fibers have positive surfaces, such as good directionality, compact internal structure and greatly improved mechanical properties; but also has one of its disadvantages, such as: the heating fire is more, the burning loss of the forging stock is more, the coal consumption is more, the power consumption of the equipment is more, the labor intensity of workers is high, and the final production cost is high.

In view of the above disadvantages, a casting process for manufacturing a ring-shaped blank of a ring-shaped forging with a larger size, i.e., a cast steel blank, instead of or in addition to a free forging process, which is a process in which a part of processes of heating square steel to a forging temperature, cutting by chisel or chopping, secondary heating, upsetting, punching, tertiary heating for preforming, and final forging for forming after four times of heating are replaced or omitted, and a process of heating and forging for forming (both circular and rectangular sections) at one time is used to produce a qualified forging, has been discussed. However, in the prior art, when a cast steel blank is used for casting, the cast steel blank is generally manufactured integrally, so that after the casting is finished, the internal cast forged piece is difficult to take out of the cast steel blank, and the whole cast steel blank cannot be used after the internal of the cast steel blank is damaged, which causes waste and increases use cost, therefore, the combined die for prefabricating the cast steel blank of the annular forged piece is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the combined die for prefabricating the ring-shaped forge piece cast steel blank, which has the advantages of convenience in detachment and separation of the cast steel blank and the cast forge piece, convenience in replacement of the inner ring body and the like, and solves the problems in the background art.

(II) technical scheme

In order to realize the purposes of conveniently detaching and separating the cast steel blank and the cast forging and conveniently replacing the internal ring body, the invention provides the following technical scheme: a combined die for prefabricating annular forge piece cast steel billets comprises a lower die blank, wherein the bottom of the lower die blank is in a circular plate shape, the peripheral side walls of the lower die blank are in an annular shape, a vertically arranged limiting rod is arranged in the middle of the inner part of the lower die blank, the lower end of the limiting rod is fixedly connected with the lower inner side wall of the lower die blank, a thread groove is formed in the upper end of the limiting rod, a limiting sleeve is movably sleeved in the middle of a dry part of the limiting rod, a plurality of uniformly distributed connecting rods are fixedly connected with the outer circumferential side wall of the limiting sleeve, an inner ring body is further arranged in the lower die blank and sleeved outside the limiting sleeve, one ends of the connecting rods, far away from the limiting sleeve, are fixedly connected with the inner circumferential side wall of the inner ring body, the lower end of the inner ring body is abutted against the lower inner side wall of the lower die blank, and a pressing sleeve is movably sleeved, the upper end of the pressing sleeve is arranged in a closed mode, a through hole corresponding to the thread groove is formed in the upper end of the pressing sleeve, a pressing bolt is movably connected inside the through hole, and the lower end of the pressing bolt is in threaded connection with the thread groove.

Preferably, a plurality of the connecting rod is four settings, four the connecting rod is the annular distribution setting around spacing sleeve.

Preferably, the diameter of the inner circle side wall of the limiting sleeve and the diameter of the rod wall of the limiting rod are in transition fit.

Preferably, the outer circular side wall of the inner ring body and the inner circular side wall of the lower die blank are both smoothly arranged.

Preferably, the inside first condenser tube that is equipped with of lower side wall of lower mould base, the inside second condenser tube that is equipped with of circumference lateral wall of lower mould base, wherein one end of first condenser tube and wherein one end intercommunication setting of second condenser tube, first condenser tube's other end fixedly connected with inlet tube, the inlet tube extends to the outside setting of lower mould base, second condenser tube's other end fixedly connected with outlet pipe, the other end of outlet pipe extends to the outside setting of lower mould base.

Preferably, the first cooling water pipe is spirally arranged, and the second cooling water pipe is spirally arranged.

Preferably, the left side and the right side of the upper end of the inner ring body are fixedly connected with U-shaped pull rods.

(III) advantageous effects

Compared with the prior art, the invention provides the combined die for prefabricating the ring-shaped forge piece cast steel billet, which has the following beneficial effects:

1. this assembling die of prefabricated annular forging cast steel billet, through the lower mould base that is equipped with, gag lever post, stop sleeve, a plurality of connecting rods, interior ring body, compression sleeve, clamp bolt and thread groove mutually support, be convenient for cast the manufacturing to annular forging, and be convenient for to inner ring body and lower mould base separation change, the annular forging of casting different internal diameters practices thrift use cost, avoids the wasting of resources.

2. This assembling die of prefabricated annular forging cast steel billet through mutually supporting of the first condenser tube, second condenser tube, inlet tube and the outlet pipe that are equipped with, is convenient for cool off fast the metal liquid of the inside casting of lower mould base, practices thrift the casting time.

Drawings

FIG. 1 is a schematic structural diagram of a combined die for prefabricating an annular forging cast steel blank according to the invention;

FIG. 2 is a schematic top view of a combined die for prefabricating an annular forging cast steel blank, provided by the invention, of a limiting sleeve, a plurality of connecting rods and an inner ring body in FIG. 1;

FIG. 3 is a schematic structural diagram of a second cooling water pipe in FIG. 1 of a combined die for prefabricating an annular forging cast steel blank.

In the figure: 1 lower die blank, 2 limiting rods, 3 limiting sleeves, 4 connecting rods, 5 inner rings, 6 pressing sleeves, 7 pressing bolts, 8 first cooling water pipes, 9 second cooling water pipes, 10 water inlet pipes, 11 water outlet pipes and 12U-shaped pull rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a combined die for prefabricating an annular forging cast steel blank comprises a lower die blank 1, wherein the bottom of the lower die blank 1 is arranged in a circular plate shape, the peripheral side wall of the lower die blank 1 is arranged in an annular shape, a vertically arranged limiting rod 2 is arranged in the middle of the inner part of the lower die blank 1, the lower end of the limiting rod 2 is fixedly connected with the lower inner side wall of the lower die blank 1, a thread groove is arranged at the upper end of the limiting rod 2, a limiting sleeve 3 is movably sleeved in the middle of a dry part of the limiting rod 2, a plurality of uniformly distributed connecting rods 4 are fixedly connected with the outer peripheral side wall of the limiting sleeve 3, an inner ring 5 is further arranged in the lower die blank 1, the inner ring 5 is sleeved outside the limiting sleeve 3, one ends of the connecting rods 4 far away from the limiting sleeve 3 are fixedly connected with the inner circumference of the inner side wall of the inner ring 5, the lower end of the inner ring 5 is abutted against the lower inner, the upper end of the pressing sleeve 6 is arranged in a closed mode, the upper end of the pressing sleeve 6 is provided with a through hole corresponding to the thread groove, the inside of the through hole is movably connected with a pressing bolt 7, and the lower end of the pressing bolt 7 is in threaded connection with the thread groove.

A plurality of connecting rods 4 are four settings, and four connecting rods 4 are the annular distribution setting around spacing sleeve 3, can make spacing sleeve 3 and inner ring body 5 firm in connection, and spacing sleeve 3 is even to inner ring body 5 atress.

The diameter of the inner circular side wall of the limiting sleeve 3 and the diameter of the rod wall of the limiting rod 2 are in transition fit, so that the limiting sleeve 3 and the limiting rod 2 can be stably sleeved in a movable mode, the phenomenon that the gap between the limiting sleeve 3 and the limiting rod 2 is too large is avoided, and the limiting sleeve 3 is caused to swing left and right.

The outer circle side wall of the inner ring body 5 and the inner circle side wall of the lower die blank 1 are both arranged smoothly, so that the cooled and shaped metal can be separated from the inner ring body 5 and the lower die blank 1 conveniently.

Inside first condenser tube 8 that is equipped with of lower side wall of lower mould base 1, the inside second condenser tube 9 that is equipped with of circumference lateral wall of lower mould base 1, wherein one end of first condenser tube 8 and wherein one end intercommunication setting of second condenser tube 9, the other end fixedly connected with inlet tube 10 of first condenser tube 8, inlet tube 10 extends to the outside setting of lower mould base 1, the other end fixedly connected with outlet pipe 11 of second condenser tube 9, the other end of outlet pipe 11 extends to the outside setting of lower mould base 1, through the leading-in cooling water of inlet tube 10, the cooling water loops through first condenser tube 8 and second condenser tube 9 and discharges through outlet pipe 11, thereby the improvement is cooled off fast to the inside metal liquid of lower mould base 1.

First condenser tube 8 is the form setting of spiraling, and second condenser tube 9 is the heliciform setting, is convenient for enlarge the cooling zone of first condenser tube 8 and second condenser tube 9 to lower mould base 1, improves cooling efficiency.

The left side and the right side of the upper end of the inner ring body 5 are fixedly connected with U-shaped pull rods 12, so that people can take the inner ring body 5 out of the lower die blank 1 conveniently.

In conclusion, this assembling die of prefabricated annular forging cast steel blank, during the use, cup joint spacing sleeve 3 with gag lever post 2, establish compressing sleeve 6 cover in the pole wall top of gag lever post 2, use hold-down bolt 7 to pass the through-hole and with thread groove threaded connection, make compressing sleeve 6 compress tightly spacing sleeve 3 to spacing sleeve 3 makes the lower extreme of interior ring 5 closely offset the setting with the lower inside wall of lower mould base 1 through a plurality of connecting rods 4, thereby is convenient for cast annular forging.

It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.